The correct option is C. It shows a positive effect of the solution.
The topic of the presentation is the impact of excessive homework on highschool. The word "excessive" implies that the amount of homework given at highschool has a negative effect on students. The solution would be to have "less homework" and she finds out a positive effect of such a solution. If students are given less homework, they will have time to do other enriching activities and spend time bonding with their loved ones.
The cause is if you finish your yard work.
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Answer:
Because it is a clue that is meant to send whoever found it on a wild goose chase. Example: If someone was looking for a red apple, and I left a note that said Someone else took the apple but i really had it. Weak example but thats what i got.
Explanation: